''Citrullus'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of seven species of

desert A desert is a landscape where little precipitation occurs and, consequently, living conditions create unique biomes and ecosystems. The lack of vegetation exposes the unprotected surface of the ground to denudation. About one-third of the la ...

vine A vine is any plant with a growth habit of trailing or scandent (that is, climbing) stems, lianas, or runners. The word ''vine'' can also refer to such stems or runners themselves, for instance, when used in wicker work.Jackson; Benjamin; Da ...

s, among which ''Citrullus lanatus'' (the

watermelon The watermelon (''Citrullus lanatus'') is a species of flowering plant in the family Cucurbitaceae, that has a large, edible fruit. It is a Glossary of botanical terms#scandent, scrambling and trailing vine-like plant, and is plant breeding ...

) is an important crop.

Taxonomy

Molecular data, including sequences from the original collection of ''Momordica lanata'' made near Cape Town by C. P. Thunberg in 1773, show that what Thunberg collected is not what has been called ''Citrullus lanatus'', the domesticated watermelon, since the 1930s. Although this error only occurred in 1930 (Bailey, Gentes Herbarum 2: 180–186), it has been perpetuated in hundreds of papers on the watermelon. In addition, there is an older name for the watermelon, ''Citrullus battich'' Forssk. (Fl. Aegypt.-Arab.: 167. Jun 1775), which would normally have the precedence over ''Momordica lanata'' Thunberg (Prodr. Pl. Cap.: 13. 1794). To solve this problem, it has been proposed to conserve the name ''Citrullus lanatus'' with a new type to preserve the current sense of the name

Species

''Citrullus'' consists of the following species and subspecies: *''

Citrullus amarus The citron melon (''Citrullus amarus''), also called fodder melon, preserving melon, red-seeded citron, jam melon, stock melon, Kalahari melon or tsamma melon, is a relative of the watermelon. It is from the family Cucurbitaceae which consists ...

Schrad. Heinrich Adolf Schrader (1 January 1767 in Alfeld near Hildesheim – 22 October 1836 in Göttingen) was a German botanist and mycologist. He studied medicine early in life. He named the Australian plant genus ''Hakea'' in 1797. In 1795 he re ...

– citron melon *''

Citrullus colocynthis ''Citrullus colocynthis'', with many common names including Abu Jahl's melon, (native name in Turkey) colocynth, bitter apple, bitter cucumber, egusi, vine of Sodom, or wild gourd, is a poisonous desert viny plant native to the Mediterrane ...

'' ( L.)

– colocynth *'' Citrullus ecirrhosus'' Cogn. – tendril-less melon *''

Citrullus lanatus The watermelon (''Citrullus lanatus'') is a species of flowering plant in the family Cucurbitaceae, that has a large, edible fruit. It is a scrambling and trailing vine-like plant, and is widely cultivated worldwide, with more than 1,000 ...

'' ( Thunb.) Matsum. & Nakai – desert watermelon ** ''Citrullus lanatus'' subsp. ''vulgaris'' var. ''cordophanus'' ( Ter-Avan.)

Fursa Saint Fursey (also known as Fursa, Fursy, Forseus, and Furseus: died 650) was an Irish monk who did much to establish Christianity throughout the British Isles and particularly in East Anglia. He reportedly experienced angelic visions of the af ...

** ''Citrullus lanatus'' var. ''lanatus'' *''

Citrullus mucosospermus ''Citrullus'' is a genus of seven species of desert vines, among which ''Citrullus lanatus'' (the watermelon) is an important crop. Taxonomy Molecular data, including sequences from the original collection of ''Momordica lanata'' made near Cape ...

'' (

)

–

egusi Egusi, also spelled egushi ( Yoruba: Ẹ̀gúṣí), are the protein-rich seeds of certain cucurbitaceous plants ( squash, melon, gourd), which, after being dried and ground, are used as a major ingredient in West African cuisine. Egusi is ...

melon *''

Citrullus naudinianus ''Acanthosicyos naudinianus'', known as the Gemsbok cucumber, is a perennial African melon with edible fruits and seeds.Grubben, G.J.H. & Denton, O.A. (2004) Plant Resources of Tropical Africa 2. Vegetables. PROTA Foundation, Wageningen; Backhuy ...

'' (

Sond. Otto Wilhelm Sonder (18 June 1812, Bad Oldesloe – 21 November 1881) was a German botanist and pharmacist. Life A native of Holstein, Sonder studied at Kiel University, where he sat pharmaceutical examinations in 1835, before becoming the prop ...

)

Hook.f. Sir Joseph Dalton Hooker (30 June 1817 – 10 December 1911) was a British botanist and explorer in the 19th century. He was a founder of geographical botany and Charles Darwin's closest friend. For 20 years he served as director of the Ro ...

*''

Citrullus rehmii ''Citrullus rehmii'', commonly known as the Namib melon, is a species of annual melon in the family Cucurbitaceae that is native to the Namib Desert, Namibia. It was described by Bernard de Winter in 1990. The species has a dark grey rind, wit ...

References

External links

Chomicki, G., and S. S. Renner. 2015. Watermelon origin solved with molecular phylogenetics including Linnaean material: Another example of museomics. New Phytologist 205(2): 526-532
{{Authority control Cucurbitaceae genera Benincaseae